154868 ÷ 42 
The aim is to understand the frequency of 42 in 154868.

Advancing to step 1:
When dividing 1 by 42, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 42

Step 2:
15 divided by 42 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 42

Step 3:
The number 42 fits into 154 3 times, leaving a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 126 from 154, we get 28.
Grab the next digit (8) from the dividend, add it to 28, then carry on: 288 / 42

Going ahead to step 4:
288 divided by 42 is 6 with a remainder of 36.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Subtracting 252 from 288 leaves us with 36.
Append the next digit (6) from the dividend to 36 and continue with: 366 / 42

On to step 5:
The number 42 fits into 366 8 times, leaving a remainder of 30.
The number 8 becomes the next digit in our result. 
Result so far: 368.0
Deduct 336 from 366 and we're left with 30.
Fetch the next digit (8) from the dividend, attach it to 30 and continue: 308 / 42

Moving on to step 6:
The number 42 fits into 308 7 times, leaving a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 3687.0
Deduct 294 from 308 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
42 can be fit into 140 3 times, resulting in a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 3687.3
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
140 divided by 42 is 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 3687.33
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 3687.33, with a leftover of 0.014.